Plutonium

I'm wondering if it's possible to play intro cutscenes before a custom game, similar to how they appear in Solo — for example, the Mob of the Dead or Origins intro cutscenes.
My friends and I often play custom games and would like these intros to play, but from what I understand, they only appear in Solo matches.
Is there a GSC script or console command that could make this possible?
Any help would be greatly appreciated.

GhostRider0125 Unfortunately, I can't decrease the player limit below the number of players in the lobby. Still, thank you for responding.